Umbratugy

You compel shadows to create one of the following effects at a point you can see within range:

• The shadow of a creature or object changes size or shape, up to a maximum of double or half its normal size. This effect lasts for up to 1 minute, or until it moves.
• You cause shadows to conceal a creature in dim light or darkness, giving them advantage on their next Dexterity (Stealth) check within the next minute as long as they remain in the dim light or darkness.
• A creature or object's shape becomes either harder or softer, making its form either easier or harder to discern from the shape of the shadow. This effect lasts for up to 1 hour.

If you cast this spell multiple times, you can have no more than two of its non-instantaneous effects active at a time, and you can dismiss such an effect as an action.